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<title>Crypto++: SymmetricCipher Class Reference</title>
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<div id="projectname">Crypto++
 <span id="projectnumber">7.0</span>
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<div id="projectbrief">Free C++ class library of cryptographic schemes</div>
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<div class="title">SymmetricCipher Class Reference</div> </div>
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<p>Interface for one direction (encryption or decryption) of a stream cipher or cipher mode.
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<img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for SymmetricCipher:</div>
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<img src="class_symmetric_cipher.png" usemap="#SymmetricCipher_map" alt=""/>
<map id="SymmetricCipher_map" name="SymmetricCipher_map">
<area href="class_simple_keying_interface.html" title="Interface for algorithms that take byte strings as keys." alt="SimpleKeyingInterface" shape="rect" coords="3682,112,4724,136"/>
<area href="class_stream_transformation.html" title="Interface for the data processing portion of stream ciphers." alt="StreamTransformation" shape="rect" coords="4734,112,5776,136"/>
<area href="class_algorithm.html" title="Interface for all crypto algorithms." alt="Algorithm" shape="rect" coords="4734,56,5776,80"/>
<area href="class_clonable.html" title="Interface for cloning objects." alt="Clonable" shape="rect" coords="4734,0,5776,24"/>
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<area href="class_c_t_r___mode_policy.html" title="CTR block cipher mode of operation." alt="CTR_ModePolicy" shape="rect" coords="2630,336,3672,360"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pub_types_class_simple_keying_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_types_class_simple_keying_interface')"><img src="closed.png" alt="-"/> Public Types inherited from <a class="el" href="class_simple_keying_interface.html">SimpleKeyingInterface</a></td></tr>
<tr class="memitem:a88201c180fbfaa9fef2715252546ad6e inherit pub_types_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6e">IV_Requirement</a> { <br />
  <a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6ea1cc32e69fe4f385e54d9d482a2ab5a56">UNIQUE_IV</a> = 0,
<a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6ea4520c4379ee3a1aed95a36e2235ba338">RANDOM_IV</a>,
<a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6eaceff3ad4b12bcb6d7b61a5bd543a815c">UNPREDICTABLE_RANDOM_IV</a>,
<a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6eab659bf6d2c470c50c14bfbab5b2d45ab">INTERNALLY_GENERATED_IV</a>,
<br />
  <a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6eac1d24de3dedd05c28516f452d3ace417">NOT_RESYNCHRONIZABLE</a>
<br />
}</td></tr>
<tr class="memdesc:a88201c180fbfaa9fef2715252546ad6e"><td class="mdescLeft"> </td><td class="mdescRight">Secure IVs requirements as enumerated values. <a href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6e">More...</a><br /></td></tr>
<tr class="separator:a88201c180fbfaa9fef2715252546ad6e inherit pub_types_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_simple_keying_interface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_simple_keying_interface')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_simple_keying_interface.html">SimpleKeyingInterface</a></td></tr>
<tr class="memitem:a2631c49dac4d5ec055c5dc88c6243578 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a2631c49dac4d5ec055c5dc88c6243578">MinKeyLength</a> () const =0</td></tr>
<tr class="memdesc:a2631c49dac4d5ec055c5dc88c6243578 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns smallest valid key length. <a href="class_simple_keying_interface.html#a2631c49dac4d5ec055c5dc88c6243578">More...</a><br /></td></tr>
<tr class="separator:a2631c49dac4d5ec055c5dc88c6243578 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae02fcb4e1f6141e728ae37612cde6fff inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ae02fcb4e1f6141e728ae37612cde6fff">MaxKeyLength</a> () const =0</td></tr>
<tr class="memdesc:ae02fcb4e1f6141e728ae37612cde6fff inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns largest valid key length. <a href="class_simple_keying_interface.html#ae02fcb4e1f6141e728ae37612cde6fff">More...</a><br /></td></tr>
<tr class="separator:ae02fcb4e1f6141e728ae37612cde6fff inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae90dfc0bdfd13e214fd46e357ef64e98 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ae90dfc0bdfd13e214fd46e357ef64e98">DefaultKeyLength</a> () const =0</td></tr>
<tr class="memdesc:ae90dfc0bdfd13e214fd46e357ef64e98 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns default key length. <a href="class_simple_keying_interface.html#ae90dfc0bdfd13e214fd46e357ef64e98">More...</a><br /></td></tr>
<tr class="separator:ae90dfc0bdfd13e214fd46e357ef64e98 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa6601819d376802e9698e815d00a5cba inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#aa6601819d376802e9698e815d00a5cba">GetValidKeyLength</a> (size_t keylength) const =0</td></tr>
<tr class="memdesc:aa6601819d376802e9698e815d00a5cba inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns a valid key length for the algorithm. <a href="class_simple_keying_interface.html#aa6601819d376802e9698e815d00a5cba">More...</a><br /></td></tr>
<tr class="separator:aa6601819d376802e9698e815d00a5cba inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a597adcc7c00b5c14fa588276efeb613d inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a597adcc7c00b5c14fa588276efeb613d">IsValidKeyLength</a> (size_t keylength) const</td></tr>
<tr class="memdesc:a597adcc7c00b5c14fa588276efeb613d inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns whether keylength is a valid key length. <a href="class_simple_keying_interface.html#a597adcc7c00b5c14fa588276efeb613d">More...</a><br /></td></tr>
<tr class="separator:a597adcc7c00b5c14fa588276efeb613d inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adf3c29b3ef3af74788a58c7c49887fd7 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">SetKey</a> (const byte *key, size_t length, const <a class="el" href="class_name_value_pairs.html">NameValuePairs</a> &params=<a class="el" href="cryptlib_8h.html#a04be65ada92ccb1e6aac0d94b4cc394b">g_nullNameValuePairs</a>)</td></tr>
<tr class="memdesc:adf3c29b3ef3af74788a58c7c49887fd7 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Sets or reset the key of this object. <a href="class_simple_keying_interface.html#adf3c29b3ef3af74788a58c7c49887fd7">More...</a><br /></td></tr>
<tr class="separator:adf3c29b3ef3af74788a58c7c49887fd7 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0401f9c67930805180964bc02ae0ac1c inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a0401f9c67930805180964bc02ae0ac1c">SetKeyWithRounds</a> (const byte *key, size_t length, int rounds)</td></tr>
<tr class="memdesc:a0401f9c67930805180964bc02ae0ac1c inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Sets or reset the key of this object. <a href="class_simple_keying_interface.html#a0401f9c67930805180964bc02ae0ac1c">More...</a><br /></td></tr>
<tr class="separator:a0401f9c67930805180964bc02ae0ac1c inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5b4e358c514fd743840967bc595a34c2 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a5b4e358c514fd743840967bc595a34c2">SetKeyWithIV</a> (const byte *key, size_t length, const byte *iv, size_t ivLength)</td></tr>
<tr class="memdesc:a5b4e358c514fd743840967bc595a34c2 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Sets or reset the key of this object. <a href="class_simple_keying_interface.html#a5b4e358c514fd743840967bc595a34c2">More...</a><br /></td></tr>
<tr class="separator:a5b4e358c514fd743840967bc595a34c2 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac25e27eaeae2e909741c07de93caef49 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ac25e27eaeae2e909741c07de93caef49">SetKeyWithIV</a> (const byte *key, size_t length, const byte *iv)</td></tr>
<tr class="memdesc:ac25e27eaeae2e909741c07de93caef49 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Sets or reset the key of this object. <a href="class_simple_keying_interface.html#ac25e27eaeae2e909741c07de93caef49">More...</a><br /></td></tr>
<tr class="separator:ac25e27eaeae2e909741c07de93caef49 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a867b535e5c4a11704d0645272e8b03f9 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_simple_keying_interface.html#a88201c180fbfaa9fef2715252546ad6e">IV_Requirement</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a867b535e5c4a11704d0645272e8b03f9">IVRequirement</a> () const =0</td></tr>
<tr class="memdesc:a867b535e5c4a11704d0645272e8b03f9 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Minimal requirement for secure IVs. <a href="class_simple_keying_interface.html#a867b535e5c4a11704d0645272e8b03f9">More...</a><br /></td></tr>
<tr class="separator:a867b535e5c4a11704d0645272e8b03f9 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a71039112353cc70e9859ebd95037cc1a inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a71039112353cc70e9859ebd95037cc1a">IsResynchronizable</a> () const</td></tr>
<tr class="memdesc:a71039112353cc70e9859ebd95037cc1a inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the object can be resynchronized. <a href="class_simple_keying_interface.html#a71039112353cc70e9859ebd95037cc1a">More...</a><br /></td></tr>
<tr class="separator:a71039112353cc70e9859ebd95037cc1a inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa09fd0893ac8c6068e07ce30bb55c1d9 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#aa09fd0893ac8c6068e07ce30bb55c1d9">CanUseRandomIVs</a> () const</td></tr>
<tr class="memdesc:aa09fd0893ac8c6068e07ce30bb55c1d9 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the object can use random IVs. <a href="class_simple_keying_interface.html#aa09fd0893ac8c6068e07ce30bb55c1d9">More...</a><br /></td></tr>
<tr class="separator:aa09fd0893ac8c6068e07ce30bb55c1d9 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab98803e8744b73663e7e9c872eef822b inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ab98803e8744b73663e7e9c872eef822b">CanUsePredictableIVs</a> () const</td></tr>
<tr class="memdesc:ab98803e8744b73663e7e9c872eef822b inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the object can use random but possibly predictable IVs. <a href="class_simple_keying_interface.html#ab98803e8744b73663e7e9c872eef822b">More...</a><br /></td></tr>
<tr class="separator:ab98803e8744b73663e7e9c872eef822b inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afbf7065f7db5439d471d1bcc260d3bd5 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#afbf7065f7db5439d471d1bcc260d3bd5">CanUseStructuredIVs</a> () const</td></tr>
<tr class="memdesc:afbf7065f7db5439d471d1bcc260d3bd5 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the object can use structured IVs. <a href="class_simple_keying_interface.html#afbf7065f7db5439d471d1bcc260d3bd5">More...</a><br /></td></tr>
<tr class="separator:afbf7065f7db5439d471d1bcc260d3bd5 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac6da9a8d3c783014ab54a2a3ee9e676a inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ac6da9a8d3c783014ab54a2a3ee9e676a">IVSize</a> () const</td></tr>
<tr class="memdesc:ac6da9a8d3c783014ab54a2a3ee9e676a inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Returns length of the IV accepted by this object. <a href="class_simple_keying_interface.html#ac6da9a8d3c783014ab54a2a3ee9e676a">More...</a><br /></td></tr>
<tr class="separator:ac6da9a8d3c783014ab54a2a3ee9e676a inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af2f7dd9da3a75651615b0ccae71f34a5 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#af2f7dd9da3a75651615b0ccae71f34a5">DefaultIVLength</a> () const</td></tr>
<tr class="memdesc:af2f7dd9da3a75651615b0ccae71f34a5 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Provides the default size of an IV. <a href="class_simple_keying_interface.html#af2f7dd9da3a75651615b0ccae71f34a5">More...</a><br /></td></tr>
<tr class="separator:af2f7dd9da3a75651615b0ccae71f34a5 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab94b9751aba4f3660accb673095180c0 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ab94b9751aba4f3660accb673095180c0">MinIVLength</a> () const</td></tr>
<tr class="memdesc:ab94b9751aba4f3660accb673095180c0 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Provides the minimum size of an IV. <a href="class_simple_keying_interface.html#ab94b9751aba4f3660accb673095180c0">More...</a><br /></td></tr>
<tr class="separator:ab94b9751aba4f3660accb673095180c0 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8fc07e61d83ce9639d9b3608fb5dd8cb inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#a8fc07e61d83ce9639d9b3608fb5dd8cb">MaxIVLength</a> () const</td></tr>
<tr class="memdesc:a8fc07e61d83ce9639d9b3608fb5dd8cb inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Provides the maximum size of an IV. <a href="class_simple_keying_interface.html#a8fc07e61d83ce9639d9b3608fb5dd8cb">More...</a><br /></td></tr>
<tr class="separator:a8fc07e61d83ce9639d9b3608fb5dd8cb inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae576137a46ca56005e82f1505cf3cccc inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ae576137a46ca56005e82f1505cf3cccc">Resynchronize</a> (const byte *iv, int ivLength=-1)</td></tr>
<tr class="memdesc:ae576137a46ca56005e82f1505cf3cccc inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Resynchronize with an IV. <a href="class_simple_keying_interface.html#ae576137a46ca56005e82f1505cf3cccc">More...</a><br /></td></tr>
<tr class="separator:ae576137a46ca56005e82f1505cf3cccc inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac8277d1517add6fd455ca576bee57fe2 inherit pub_methods_class_simple_keying_interface"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_simple_keying_interface.html#ac8277d1517add6fd455ca576bee57fe2">GetNextIV</a> (<a class="el" href="class_random_number_generator.html">RandomNumberGenerator</a> &rng, byte *iv)</td></tr>
<tr class="memdesc:ac8277d1517add6fd455ca576bee57fe2 inherit pub_methods_class_simple_keying_interface"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves a secure IV for the next message. <a href="class_simple_keying_interface.html#ac8277d1517add6fd455ca576bee57fe2">More...</a><br /></td></tr>
<tr class="separator:ac8277d1517add6fd455ca576bee57fe2 inherit pub_methods_class_simple_keying_interface"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_stream_transformation"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_stream_transformation')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_stream_transformation.html">StreamTransformation</a></td></tr>
<tr class="memitem:a8c9304fff5af593ee68d3cf0d33c06e9 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_stream_transformation.html">StreamTransformation</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a8c9304fff5af593ee68d3cf0d33c06e9">Ref</a> ()</td></tr>
<tr class="memdesc:a8c9304fff5af593ee68d3cf0d33c06e9 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides a reference to this object. <a href="class_stream_transformation.html#a8c9304fff5af593ee68d3cf0d33c06e9">More...</a><br /></td></tr>
<tr class="separator:a8c9304fff5af593ee68d3cf0d33c06e9 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae224d250f716e82c54bc4e4c8930d188 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#ae224d250f716e82c54bc4e4c8930d188">MandatoryBlockSize</a> () const</td></tr>
<tr class="memdesc:ae224d250f716e82c54bc4e4c8930d188 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides the mandatory block size of the cipher. <a href="class_stream_transformation.html#ae224d250f716e82c54bc4e4c8930d188">More...</a><br /></td></tr>
<tr class="separator:ae224d250f716e82c54bc4e4c8930d188 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af66ef64545279c01310718af3d627534 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#af66ef64545279c01310718af3d627534">OptimalBlockSize</a> () const</td></tr>
<tr class="memdesc:af66ef64545279c01310718af3d627534 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides the input block size most efficient for this cipher. <a href="class_stream_transformation.html#af66ef64545279c01310718af3d627534">More...</a><br /></td></tr>
<tr class="separator:af66ef64545279c01310718af3d627534 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab8422f6eee08fbc70069e222186e90de inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#ab8422f6eee08fbc70069e222186e90de">GetOptimalBlockSizeUsed</a> () const</td></tr>
<tr class="memdesc:ab8422f6eee08fbc70069e222186e90de inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides the number of bytes used in the current block when processing at optimal block size. <a href="class_stream_transformation.html#ab8422f6eee08fbc70069e222186e90de">More...</a><br /></td></tr>
<tr class="separator:ab8422f6eee08fbc70069e222186e90de inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a447cfac11f97012dff9662fb5e5d208b inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a447cfac11f97012dff9662fb5e5d208b">OptimalDataAlignment</a> () const</td></tr>
<tr class="memdesc:a447cfac11f97012dff9662fb5e5d208b inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides input and output data alignment for optimal performance. <a href="class_stream_transformation.html#a447cfac11f97012dff9662fb5e5d208b">More...</a><br /></td></tr>
<tr class="separator:a447cfac11f97012dff9662fb5e5d208b inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a26feabde21bc4d1783195969733e3bb0 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a26feabde21bc4d1783195969733e3bb0">ProcessData</a> (byte *outString, const byte *inString, size_t length)=0</td></tr>
<tr class="memdesc:a26feabde21bc4d1783195969733e3bb0 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Encrypt or decrypt an array of bytes. <a href="class_stream_transformation.html#a26feabde21bc4d1783195969733e3bb0">More...</a><br /></td></tr>
<tr class="separator:a26feabde21bc4d1783195969733e3bb0 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af48589443f77f4ed9ff185f9c1a26cbf inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#af48589443f77f4ed9ff185f9c1a26cbf">ProcessLastBlock</a> (byte *outString, size_t outLength, const byte *inString, size_t inLength)</td></tr>
<tr class="memdesc:af48589443f77f4ed9ff185f9c1a26cbf inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Encrypt or decrypt the last block of data. <a href="class_stream_transformation.html#af48589443f77f4ed9ff185f9c1a26cbf">More...</a><br /></td></tr>
<tr class="separator:af48589443f77f4ed9ff185f9c1a26cbf inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0b7c5bc41b9b5f6443ee32d65ebc044c inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a0b7c5bc41b9b5f6443ee32d65ebc044c">MinLastBlockSize</a> () const</td></tr>
<tr class="memdesc:a0b7c5bc41b9b5f6443ee32d65ebc044c inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Provides the size of the last block. <a href="class_stream_transformation.html#a0b7c5bc41b9b5f6443ee32d65ebc044c">More...</a><br /></td></tr>
<tr class="separator:a0b7c5bc41b9b5f6443ee32d65ebc044c inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a62db1393d64069b282e3d455b38cd0e5 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a62db1393d64069b282e3d455b38cd0e5">IsLastBlockSpecial</a> () const</td></tr>
<tr class="memdesc:a62db1393d64069b282e3d455b38cd0e5 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the last block receives special processing. <a href="class_stream_transformation.html#a62db1393d64069b282e3d455b38cd0e5">More...</a><br /></td></tr>
<tr class="separator:a62db1393d64069b282e3d455b38cd0e5 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac00f3fcc21f33f11c8efa4de67ff7774 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#ac00f3fcc21f33f11c8efa4de67ff7774">ProcessString</a> (byte *inoutString, size_t length)</td></tr>
<tr class="memdesc:ac00f3fcc21f33f11c8efa4de67ff7774 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Encrypt or decrypt a string of bytes. <a href="class_stream_transformation.html#ac00f3fcc21f33f11c8efa4de67ff7774">More...</a><br /></td></tr>
<tr class="separator:ac00f3fcc21f33f11c8efa4de67ff7774 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a17951cb36412763e0d6bd9696177175d inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a17951cb36412763e0d6bd9696177175d">ProcessString</a> (byte *outString, const byte *inString, size_t length)</td></tr>
<tr class="memdesc:a17951cb36412763e0d6bd9696177175d inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Encrypt or decrypt a string of bytes. <a href="class_stream_transformation.html#a17951cb36412763e0d6bd9696177175d">More...</a><br /></td></tr>
<tr class="separator:a17951cb36412763e0d6bd9696177175d inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a71a9bd33526fc7f227050075e7a78106 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">byte </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a71a9bd33526fc7f227050075e7a78106">ProcessByte</a> (byte input)</td></tr>
<tr class="memdesc:a71a9bd33526fc7f227050075e7a78106 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Encrypt or decrypt a byte. <a href="class_stream_transformation.html#a71a9bd33526fc7f227050075e7a78106">More...</a><br /></td></tr>
<tr class="separator:a71a9bd33526fc7f227050075e7a78106 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad7286fd9a993de0a147b0c20f660bfa5 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#ad7286fd9a993de0a147b0c20f660bfa5">IsRandomAccess</a> () const =0</td></tr>
<tr class="memdesc:ad7286fd9a993de0a147b0c20f660bfa5 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Determines whether the cipher supports random access. <a href="class_stream_transformation.html#ad7286fd9a993de0a147b0c20f660bfa5">More...</a><br /></td></tr>
<tr class="separator:ad7286fd9a993de0a147b0c20f660bfa5 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa60971c40c6cbcfb703ebe3d6495b6fc inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#aa60971c40c6cbcfb703ebe3d6495b6fc">Seek</a> (lword pos)</td></tr>
<tr class="memdesc:aa60971c40c6cbcfb703ebe3d6495b6fc inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Seek to an absolute position. <a href="class_stream_transformation.html#aa60971c40c6cbcfb703ebe3d6495b6fc">More...</a><br /></td></tr>
<tr class="separator:aa60971c40c6cbcfb703ebe3d6495b6fc inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a583bc0edbd8a11c91da53395298c50de inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a583bc0edbd8a11c91da53395298c50de">IsSelfInverting</a> () const =0</td></tr>
<tr class="memdesc:a583bc0edbd8a11c91da53395298c50de inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Determines whether the cipher is self-inverting. <a href="class_stream_transformation.html#a583bc0edbd8a11c91da53395298c50de">More...</a><br /></td></tr>
<tr class="separator:a583bc0edbd8a11c91da53395298c50de inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3244f76963a12a5ab6112326c7af9724 inherit pub_methods_class_stream_transformation"><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_stream_transformation.html#a3244f76963a12a5ab6112326c7af9724">IsForwardTransformation</a> () const =0</td></tr>
<tr class="memdesc:a3244f76963a12a5ab6112326c7af9724 inherit pub_methods_class_stream_transformation"><td class="mdescLeft"> </td><td class="mdescRight">Determines if the cipher is being operated in its forward direction. <a href="class_stream_transformation.html#a3244f76963a12a5ab6112326c7af9724">More...</a><br /></td></tr>
<tr class="separator:a3244f76963a12a5ab6112326c7af9724 inherit pub_methods_class_stream_transformation"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_algorithm"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_algorithm')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_algorithm.html">Algorithm</a></td></tr>
<tr class="memitem:a1c77f5117ca2cd881baf26a364cfc606 inherit pub_methods_class_algorithm"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_algorithm.html#a1c77f5117ca2cd881baf26a364cfc606">Algorithm</a> (bool checkSelfTestStatus=true)</td></tr>
<tr class="memdesc:a1c77f5117ca2cd881baf26a364cfc606 inherit pub_methods_class_algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Interface for all crypto algorithms. <a href="class_algorithm.html#a1c77f5117ca2cd881baf26a364cfc606">More...</a><br /></td></tr>
<tr class="separator:a1c77f5117ca2cd881baf26a364cfc606 inherit pub_methods_class_algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4f31510a192d1121856efe8ad0a9b844 inherit pub_methods_class_algorithm"><td class="memItemLeft" align="right" valign="top">virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="class_algorithm.html#a4f31510a192d1121856efe8ad0a9b844">AlgorithmName</a> () const</td></tr>
<tr class="memdesc:a4f31510a192d1121856efe8ad0a9b844 inherit pub_methods_class_algorithm"><td class="mdescLeft"> </td><td class="mdescRight">Provides the name of this algorithm. <a href="class_algorithm.html#a4f31510a192d1121856efe8ad0a9b844">More...</a><br /></td></tr>
<tr class="separator:a4f31510a192d1121856efe8ad0a9b844 inherit pub_methods_class_algorithm"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_class_clonable"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_clonable')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="class_clonable.html">Clonable</a></td></tr>
<tr class="memitem:ad0016ba2d505c23aa85aad49e6c19bb7 inherit pub_methods_class_clonable"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_clonable.html">Clonable</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_clonable.html#ad0016ba2d505c23aa85aad49e6c19bb7">Clone</a> () const</td></tr>
<tr class="memdesc:ad0016ba2d505c23aa85aad49e6c19bb7 inherit pub_methods_class_clonable"><td class="mdescLeft"> </td><td class="mdescRight">Copies this object. <a href="class_clonable.html#ad0016ba2d505c23aa85aad49e6c19bb7">More...</a><br /></td></tr>
<tr class="separator:ad0016ba2d505c23aa85aad49e6c19bb7 inherit pub_methods_class_clonable"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Interface for one direction (encryption or decryption) of a stream cipher or cipher mode. </p>
<p>These objects usually should not be used directly. See <a class="el" href="class_stream_transformation.html" title="Interface for the data processing portion of stream ciphers.">StreamTransformation</a> for more details. </p>
<p class="definition">Definition at line <a class="el" href="cryptlib_8h_source.html#l01237">1237</a> of file <a class="el" href="cryptlib_8h_source.html">cryptlib.h</a>.</p>
</div><hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="cryptlib_8h_source.html">cryptlib.h</a></li>
</ul>
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